/*
 * Copyright 2013, Edmodo, Inc. 
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this work except in compliance with the License.
 * You may obtain a copy of the License in the LICENSE file, or at:
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" 
 * BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language 
 * governing permissions and limitations under the License. 
 */

package com.smartandroid.sa.cropper;

import android.graphics.Rect;

/**
 * HandleHelper class to handle corner Handles (i.e. top-left, top-right,
 * bottom-left, and bottom-right handles).
 */
class CornerHandleHelper extends HandleHelper {

	// Constructor /////////////////////////////////////////////////////////////

	CornerHandleHelper(Edge horizontalEdge, Edge verticalEdge) {
		super(horizontalEdge, verticalEdge);
	}

	// HandleHelper Methods ////////////////////////////////////////////////////

	@Override
	void updateCropWindow(float x, float y, float targetAspectRatio,
			Rect imageRect, float snapRadius) {

		final EdgePair activeEdges = getActiveEdges(x, y, targetAspectRatio);
		final Edge primaryEdge = activeEdges.primary;
		final Edge secondaryEdge = activeEdges.secondary;

		primaryEdge.adjustCoordinate(x, y, imageRect, snapRadius,
				targetAspectRatio);
		secondaryEdge.adjustCoordinate(targetAspectRatio);

		if (secondaryEdge.isOutsideMargin(imageRect, snapRadius)) {
			secondaryEdge.snapToRect(imageRect);
			primaryEdge.adjustCoordinate(targetAspectRatio);
		}
	}
}
